When my mom was dying, her confessor would come over once a week. Occasionally, he would have dinner. I learned some do’s over the dinner table.
Do - let the kids say grace before dinner. The Father enjoys hearing the other people talk to God.
Do - discuss other topics than parish politics, Catholic theology, or worse who is not being faithful. Priests in general enjoy a family atmosphere. Discussions of what kids learned in school seem cool. Talk about what happened at work. Give some opinion on news events. Slip in some (good) family gossip. Pour wine.
Do - listen when Father talks. Sometimes he just wants to relate something someone else said. Or discuss some events from his past. Last I checked, priests are human and want to relax with their dinner companions.
Do - invite people of other faiths or no faith. Father will likely not to be shocked that friends are not all the same religion. As long as there is no direct attacks against Catholicism. Or assaults on another person’s religion or lack of. My mom’s confessor said he really enjoy my athestic buddy who graced our table. Wit and intelligent discussion seem welcome.